Anyone know how to point out an error to imdb?

John Banner, actor best known for Hogan's Heroes, was in Alfred Hitchcock, S1 E21 in 1959. Info is correct on the episode page, but missing from Banner,s. Banner, btw, was a Jew who fled to the US in 1938. He must have enjoyed playing the clueless Nazi. Also, Werner Klemperer, Col. Clink to Banner's Sgt. Schultz, was also in this AH episode.